Heating apparatus for lens, and lens assembly and method for manufacturing same

Abstract

A heating device for a lens, and an optical camera and a method for manufacturing same. A lens (1000) comprises a lens body, the lens body has a first surface (1100) and a second surface (1200) which are opposite to each other, and an edge (1300) that connects the first surface (1100) and the second surface (1200). The 5 heating device (1400) comprises: a heating unit adapted to be arranged on the edge (1300) of the lens body and used for transferring heat to the lens body after being powered. The heating device (1400) can achieve at least one of the beneficial effects such as a simple structure, high heat efficiency, uniform heating, safety in use, and strong weather resistance.

What is claimed is: 
     
         1 . A heating apparatus for a lens, the lens comprising a lens body, the lens body having a first surface and a second surface opposite to each other, and an edge connecting the first surface and the second surface, the heating apparatus comprising:
 a heating unit, adapted to be arranged on the edge of the lens body and configured to transfer heat to the lens body after being powered.   
     
     
         2 . The heating apparatus according to  claim 1 , wherein the heating unit comprises a ceramic heating ring provided with a heat generating element or a polyimide heating film provided with the heat generating element. 
     
     
         3 . The heating apparatus according to  claim 1 , wherein the heating apparatus further comprises a fixing element, the fixing element being configured to fix the heating unit to the edge of the lens body,
 wherein the fixing element is a thermal conductive glue, a thermal conductive tape, an electric conductive glue, an electric conductive tape, or a resilient component;   wherein when the fixing element is the resilient component, the heating unit is fixed to the edge by resilience of the resilient element.   
     
     
         4 . The heating apparatus according to  claim 2 , wherein the heat generating element is arranged between two layers of the polyimide film, and the heat generating element is connected to each polyimide film through at least one of a thermal conductive glue, to thermal conductive tape, an electric conductive glue, or an electric conductive tape. 
     
     
         5 . The heating apparatus according to  claim 2 , wherein the polyimide heating film is a rigid carrier polyimide heating film. 
     
     
         6 . The heating apparatus according to  claim 1 , wherein the heating apparatus further comprises an electric conductive unit electrically connected to the heating unit, and the electric conductive unit comprises at least two leads,
 wherein the heating apparatus further comprises: an energy supply unit; and the electric conductive unit is configured to provide electrical connection between the heat generating element and the energy supply unit.   
     
     
         7 . The heating apparatus according to  claim 6 , wherein the electric conductive unit is connected to the heat generating element through one or more of welding, an electric conductive glue, an electric conductive tape, a thermal conductive glue, a thermal conductive tape, and compacting connection. 
     
     
         8 . The heating apparatus according to  claim 6 , further comprising a structural member, and the structural member comprising:
 a structural member body, configured to fixedly connect to the lens;   a first terminal, fixedly connected to the structural member body, configured to be rigidly fixedly connected and electrically connected to an external power supply; and   a second terminal, electrically connected to the first terminal through the structural member body, and configured to electrically connect to the heating unit through the at least two leads.   
     
     
         9 . The heating apparatus according to  claim 8 , wherein the structural member body comprises a first electrical contact area;
 the first terminal is a first conductive end, electrically connected to the first electrical contact area and rigidly electrically connected to an output end of the external power supply; and   the second terminal is a second conductive end, fixed in the first electrical contact area at a position corresponding to the at least two leads.   
     
     
         10 . The heating apparatus according to  claim 9 , wherein the first conductive end is configured to position when the structural member is connected to the external power supply. 
     
     
         11 . The heating apparatus according to  claim 9 , wherein the first conductive end and the second conductive end each comprises a positive electrode and a negative electrode, and the first electrical contact area comprises a first positive electrode area and a first negative electrode area;
 the positive electrode of the first conductive end is electrically connected to the first positive electrode area, and the positive electrode of the second conductive end is arranged at a position in the first positive electrode area corresponding to a positive power supply line of the at least two leads; and   the negative electrode of the first conductive end is electrically connected to the first negative electrode area, and the negative electrode of the second conductive end is arranged at a position in the first negative electrode area corresponding to a negative power supply line of the at least two leads.   
     
     
         12 . The heating apparatus according to  claim 11 , wherein the structural member body has a mounting axis, and the structural member body is adapted to be fixedly connected to the lens by coinciding the mounting axis with an optical axis of the lens;
 the structural member body comprises at least one of: a first end surface and a second end surface opposite each other in a direction of the mounting axis, an inner peripheral surface surrounding the mounting axis, or an outer peripheral surface surrounding the mounting axis, wherein the second end surface faces towards the at least two leads;   the first positive electrode area is located on the second end surface, the inner peripheral surface, or the outer peripheral surface; and   the first negative electrode area is located on the second end surface, the inner peripheral surface, or the outer peripheral surface.   
     
     
         13 . The heating apparatus according to  claim 8 , wherein a shape of the first terminal comprises: a polygonal needle shape, a rectangular sheet shape, or a combination of the polygonal needle shape and the rectangular sheet shape. 
     
     
         14 . The heating apparatus according to  claim 8 , wherein the second terminal is a second conductive end, connected to the at least two leads through welding interconnection or piercing connection. 
     
     
         15 . The heating apparatus according to  claim 1 , wherein,
 the heating unit comprises a first film layer, a heat generating element, and a second film layer that are arranged in sequence;   the first film layer and the second film layer are made of polyimide material; and   the heat generating element is made of at least one metal foil material in the rolled copper foil, electrolytic copper foil, Constantan copper foil, and stainless steel.   
     
     
         16 . The heating apparatus according to  claim 1 , wherein
 the heating unit comprises a first film layer, a heat generating element, and a second film layer that are arranged in sequence; and   the heat generating element is arranged in a shape of wire on the edge, wherein a spacing and a width of the wire are greater than or equal to 0.02 mm.   
     
     
         17 . The heating apparatus according to  claim 1 , wherein
 the heating unit comprises a first film layer, a heat generating element, and a second film layer that are arranged in sequence; and   the heating unit is folded and arranged on the edge, wherein the folded heat generating elements is connected in series.   
     
     
         18 . The heating apparatus according to  claim 1 , wherein
 the heating unit comprises a first film layer, a heat generating element, and a second film layer that are arranged in sequence;   the heating apparatus further comprises a conductive unit electrically connected to the heating unit; and   wherein the heating unit is stacked and arranged on the edge, wherein the stacked conductive unit are electrically connected with each other.   
     
     
         19 . A lens having a heating apparatus, comprising a lens body, the lens body having a first surface and a second surface opposite to each other, and an edge connecting the first surface and the second surface, wherein the lens further comprises:
 a heating apparatus, arranged on the edge of the lens body, configured to transfer heat to the lens body when powered,   wherein the heating apparatus is configured as a ceramic heating ring with a heat generating element provided inside or a polyimide heating film with the heat generating element provided inside.   
     
     
         20 . The lens according to  claim 19 , wherein the lens is provided with a notch groove, and the heating apparatus is arranged in the notch groove. 
     
     
         21 . The lens according to  claim 19 , wherein the heating apparatus further comprises a fixing element, configured to fix the heating apparatus to the edge. 
     
     
         22 . The lens according to  claim 19 , wherein a mechanism member is provided between lenses, and the ceramic heating ring is formed as the mechanism member.